Vaisala RVP900

USER’S MANUAL__________________________________________________________________
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7.25 Set Trigger Timing Slew (SETSLEW)
The Mt menu allows you to select a subset of triggers that can be slewed
"left" and "right" in order to place the burst pulse accurately at range zero.
This command allows you to manually set the present amount of slew. The
input argument is in hundredths of microseconds, that is, ranging from -
327.68 µsec to +327.67 µsec. The actual span permitted by the RVP900 is
±20 µsec. This is the same format used in GPARM Output #56 which
shows the present slew value.
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7.26 Hunt for Burst Pulse (BPHUNT)
This command starts up the internal procedure to hunt for a missing burst
pulse when we are uncertain of both its time and frequency. Depending on
how the hunting process has been configured in the Mb menu, the whole
procedure may take several seconds to complete. The RVP900 host
computer interface remains completely functional during this time, but any
acquired data would certainly be questionable. GPARM status bits in word
#55 indicate when the hunt procedure is running, and whether it has
completed successfully.
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
| | | | | | | | | | | | | | | | |
| | 0 0 0 0 1 0 1 1 1 1 1 1 | Command
|_______________|_______________________________________________|
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
| | | | | | | | | | | | | | | | |
| 16–Bit AFC/MFC Value (–32768 through +32767) | Input 1
|_______________________________________________________________|
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
| | | | | | | | | | | | | | | | |
| | 0 0 0 0 1 1 0 1 1 1 1 1 | Command
|_______________|_______________________________________________|
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
| | | | | | | | | | | | | | | | |
| Signed trigger slew in hundredths of microseconds | Input 1
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